Rheem-Ruud 51-106542-08 ECM Blower Motor 3/4 HP 120V 48Y Frame Variable Speed

The Rheem-Ruud 51-106542-08 is a high-efficiency ECM (Electronically Commutated Motor) blower motor designed for residential and light commercial HVAC applications. This 3/4 horsepower motor operates on 120 volts and features advanced variable speed technology for superior comfort control and energy savings.

Key Features:

• ECM technology delivers up to 30% greater energy efficiency compared to traditional PSC motors
• Variable speed operation allows precise airflow control for optimal indoor comfort
• 48Y NEMA frame size with 1/2 inch shaft diameter for universal compatibility
• 5-1/2 inch overall shaft length with 4 inch keyed/flat shaft length
• Ball bearing construction for quiet, reliable operation and extended service life
• Shell-band mounting design simplifies installation and replacement
• 120V/1-phase/60Hz power supply for standard residential applications
• Compatible with Rheem and Ruud air handlers and furnaces

The SelecTech Gen 3 motor design provides programmable speed control that automatically adjusts airflow based on system demand, reducing energy consumption while maintaining consistent temperature and humidity levels. This motor features a compact design with a 5-39/64 inch motor body diameter and 12-9/16 inch overall motor length. The variable speed functionality reduces wear on system components, extends equipment life, and operates more quietly than fixed-speed motors.

Specifications:

• Horsepower: 3/4 HP
• Voltage: 120V, Single Phase, 60Hz
• Frame Size: 48Y
• Speeds: Variable
• Shaft Diameter: 1/2 inch
• Overall Shaft Length: 5-1/2 inches
• Motor Body Diameter: 5-39/64 inches
• Motor Body Length: 7-1/16 inches
• Overall Motor Length: 12-9/16 inches
• Mounting Type: Shell-band
• Bearing Type: Ball

This genuine OEM replacement motor supersedes part number 51-104356-08 and is designed for Rheem and Ruud MSA/MXA series equipment. For proper installation and programming, use with compatible control modules and programming kit K33C.